TechnologyOne incident
Unable to access Ci for a subset of customers / UK Region
TechnologyOne experienced a major incident on September 4, 2024, lasting 1h 43m. The incident has been resolved; the full update timeline is below.
Update timeline
- identified Sep 04, 2024, 02:22 PM UTC
Our team is troubleshooting an issue impacting Ci Access for the UK region, this includes some Timetabling and Scheduling Access A subset of customers in UK Region are experiencing 404 errors. Due to the investigation, the next update will be provided in 30 minutes, or sooner if new information becomes available.
- monitoring Sep 04, 2024, 02:51 PM UTC
A fix has been implemented and we are currently monitoring the situation.
- resolved Sep 04, 2024, 04:06 PM UTC
This incident has been resolved.
- postmortem Sep 19, 2024, 07:08 AM UTC
**Issue Summary** On 5/09/2024, a subset of users experienced 404 errors while attempting to Access Timetabling and Scheduling. **Root Cause Analysis** The incident was triggered by Windows Defender Antivirus erroneously flagging a part of the Timetabling software as potentially harmful. TechnologyOne software is checked rigorously and on review, no threat or issue existed inside the software. **Corrective Actions** 1. Cleared the warning flag on affected servers returning them to normal operation 2. Flagged software added to a scan exclusion list in future builds. **Preventive Measures** Exclude pre-checked and known-safe software from more aggressive anti-virus protection mechanisms.